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Macintosh Picture Format  |  1996-09-10  |  186.6 KB  |  640x310  |  8-bit (216 colors)
   ocr: Sequoia protect the tree during forest fires. Fire is one of the few natural agents that can kill a sequoia, but it also clears the ground for new seedlings, which require bare soil and cannot develop in deep litter or in areas covered with competing plants. Unlike its relative, the red- wood (Sequoia semperurrens), the giant sequoia does not produce basal sprouts after its aerial portions have been burned. Forests of many kinds of sequoias were widespread in the age of dinosaurs and continued to flourish for tens of millions of years thereafter. 316